Finding the Fourth Proportional to 197.99, 273.23 and 115.12
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Solution
The fourth proportional to 197.99, 273.23 and 115.12 is: 158.87
Step by Step Solution
- Step 1: Write the proportion equation
197.99 : 273.23 = 115.12 : x - Step 2: Convert to fraction form
197.99/273.23 = 115.12/x - Step 3: Cross multiply
197.99x = 273.23 × 115.12 - Step 4: Simplify right side
197.99x = 31,454.24 - Step 5: Solve for x
x = 31,454.24/197.99 - Step 6: Final answer
x = 158.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.